+Open data
-Basic information
Entry | Database: PDB / ID: 8eau | ||||||
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Title | Yeast VO in complex with Vma21p | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / V-type / ATPase / assembly / proton | ||||||
Function / homology | Function and homology information vacuolar proton-transporting V-type ATPase complex assembly / cell wall mannoprotein biosynthetic process / ATPase-coupled ion transmembrane transporter activity / protein localization to vacuolar membrane / cellular response to alkaline pH / Insulin receptor recycling / Transferrin endocytosis and recycling / polyphosphate metabolic process / ROS and RNS production in phagocytes / Amino acids regulate mTORC1 ...vacuolar proton-transporting V-type ATPase complex assembly / cell wall mannoprotein biosynthetic process / ATPase-coupled ion transmembrane transporter activity / protein localization to vacuolar membrane / cellular response to alkaline pH / Insulin receptor recycling / Transferrin endocytosis and recycling / polyphosphate metabolic process / ROS and RNS production in phagocytes / Amino acids regulate mTORC1 / Golgi lumen acidification / P-type proton-exporting transporter activity / vacuolar transport / endosomal lumen acidification / vacuolar proton-transporting V-type ATPase, V0 domain / protein targeting to vacuole / vacuole organization / vacuolar proton-transporting V-type ATPase complex / proton-transporting V-type ATPase complex / fungal-type vacuole / vacuolar acidification / cellular hyperosmotic response / fungal-type vacuole membrane / phosphatidylinositol-3,5-bisphosphate binding / proton transmembrane transporter activity / intracellular copper ion homeostasis / Neutrophil degranulation / endoplasmic reticulum-Golgi intermediate compartment membrane / proton-transporting ATPase activity, rotational mechanism / RNA endonuclease activity / proton transmembrane transport / cell periphery / ER to Golgi transport vesicle membrane / transmembrane transport / endocytosis / ATPase binding / protein-containing complex assembly / intracellular iron ion homeostasis / membrane raft / Golgi membrane / endoplasmic reticulum membrane / endoplasmic reticulum / membrane Similarity search - Function | ||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
Authors | Wang, H. / Bueler, S.A. / Rubinstein, J.L. | ||||||
Funding support | Canada, 1items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2023 Title: Structural basis of V-ATPase V region assembly by Vma12p, 21p, and 22p. Authors: Hanlin Wang / Stephanie A Bueler / John L Rubinstein / Abstract: Vacuolar-type adenosine triphosphatases (V-ATPases) are rotary proton pumps that acidify specific intracellular compartments in almost all eukaryotic cells. These multi-subunit enzymes consist of a ...Vacuolar-type adenosine triphosphatases (V-ATPases) are rotary proton pumps that acidify specific intracellular compartments in almost all eukaryotic cells. These multi-subunit enzymes consist of a soluble catalytic V region and a membrane-embedded proton-translocating V region. V is assembled in the endoplasmic reticulum (ER) membrane, and V is assembled in the cytosol. However, V binds V only after V is transported to the Golgi membrane, thereby preventing acidification of the ER. We isolated V complexes and subcomplexes from bound to V-ATPase assembly factors Vma12p, Vma21p, and Vma22p. Electron cryomicroscopy shows how the Vma12-22p complex recruits subunits a, e, and f to the rotor ring of V while blocking premature binding of V. Vma21p, which contains an ER-retrieval motif, binds the V:Vma12-22p complex, "mature" V, and a complex that appears to contain a ring of loosely packed rotor subunits and the proteins YAR027W and YAR028W. The structures suggest that Vma21p binds assembly intermediates that contain a rotor ring and that activation of proton pumping following assembly of V with V removes Vma21p, allowing V-ATPase to remain in the Golgi. Together, these structures show how Vma12-22p and Vma21p function in V-ATPase assembly and quality control, ensuring the enzyme acidifies only its intended cellular targets. #1: Journal: Biorxiv / Year: 2022 Title: Structural basis of V-ATPase V0 region assembly by Vma12p, 21p, and 22p Authors: Wang, H. / Bueler, S.A. / Rubinstein, J.L. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8eau.cif.gz | 487.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8eau.ent.gz | 394.9 KB | Display | PDB format |
PDBx/mmJSON format | 8eau.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8eau_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 8eau_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | 8eau_validation.xml.gz | 77.9 KB | Display | |
Data in CIF | 8eau_validation.cif.gz | 123.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ea/8eau ftp://data.pdbj.org/pub/pdb/validation_reports/ea/8eau | HTTPS FTP |
-Related structure data
Related structure data | 27986MC 8easC 8eatC 8eavC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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-Components
-V-type proton ATPase subunit ... , 6 types, 13 molecules acdeghijklmno
#1: Protein | Mass: 95625.484 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P32563 | ||
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#3: Protein | Mass: 22610.641 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P23968 | ||
#4: Protein | Mass: 39822.484 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P32366 | ||
#5: Protein | Mass: 8387.065 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q3E7B6 | ||
#7: Protein | Mass: 16357.501 Da / Num. of mol.: 8 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P25515 #8: Protein | | Mass: 17046.361 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P32842 |
-Protein , 3 types, 3 molecules bfp
#2: Protein | Mass: 29694.885 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P53262 |
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#6: Protein | Mass: 9369.934 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P0C5R9 |
#9: Protein | Mass: 8441.960 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P41806 |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Yeast VO in complex with Vma21p / Type: COMPLEX / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER/RHODIUM / Grid type: Homemade |
Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 80 % / Chamber temperature: 277 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 49 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 127922 / Symmetry type: POINT | ||||||||||||||||||||||||
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